Which of the following is the green coloured powder produced when ammonium dichromate is used in fireworks?
- A$Cr$
- B$CrO_3$
- C$Cr_2O_3$
- D$CrO(O_2)$
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An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is $....\, B.M.$ (Nearest integer)
Which of the following is used in the manufacture of high refractive index optical glass for cameras?
Easy
View SolutionThe yellow colour of chromates changes to orange on acidification due to the formation of:
Easy
View SolutionThe incorrect statement is:
The orange colour of $K_2Cr_2O_7$ and purple colour of $KMnO_4$ is due to
DifficultJEE MAIN 2024
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